Hi,
Assuming this Sling Model (using Lombok's @Getter annotation)
@Getter
@Model(
adaptables = { SlingHttpServletRequest.class },
adapters = { MyModel.class, ComponentExporter.class },
resourceType = MyModel.RESOURCE_TYPE)
@Exporter(
name = ExporterConstants.SLING_MODEL_EXPORTER_NAME,
extensions = ExporterConstants.SLING_MODEL_EXTENSION)
public class MyModel implements ComponentExporter {
static final String RESOURCE_TYPE = "myapp/components/mymodel";
@Inject
private ResourceResolver resolver;
@ChildResource
private List<Resource> items;
}
When it this model is serialized via SlingModelExporter / Jackson, the
resolver field is also exported via the created getResolver()) method.
But serializing that does not always work:
org.apache.sling.models.factory.ExportException:
com.fasterxml.jackson.databind.exc.InvalidDefinitionException: No
serializer found for class
com.day.cq.wcm.core.impl.policies.ContentPolicyManagerImpl and no
properties discovered to create BeanSerializer (to avoid exception, disable
SerializationFeature.FAIL_ON_EMPTY_BEANS) (through reference chain:
com.myapp.PageImpl[":items"]> [...] > com.myapp.MyModel["resolver"]
>org.apache.sling.resourceresolver.impl.ResourceResolverImpl["propertyMap"]
>java.util.HashMap["com.day.cq.wcm.core.impl.policies.ContentPolicyAdapterFactory.ContentPolicy"])
at
org.apache.sling.models.jacksonexporter.impl.JacksonExporter.export(JacksonExporter.java:138)
[org.apache.sling.models.jacksonexporter:1.1.2]
at
org.apache.sling.models.impl.ModelAdapterFactory.exportModel(ModelAdapterFactory.java:1333)
[org.apache.sling.models.impl:1.5.4]
I don't want to check each class I want to add to the propertyMap if it can
be serialized or not; and a more serious problem is that serializing the
resourceResolver and it's properyMap can leak a lot of information, which
should be not get public.
Do you see a way to prevent serialization of the ResourceResolver (and
potentially other types as well) without touching the model classes?
Jörg
--
Cheers,
Jörg Hoh,
https://cqdump.joerghoh.de
Twitter: @joerghoh
